Primary partition is like main entrance of your house. When the operating system boots (starts up) it has to access your primary drive and RAM to load operating system. Extended partitions are the fractions separated from primary drive for data storage purposes.
Ther can only be one Extended Partition per hard drive
primary, extended, logical - 3 types
in Linux this is the second logical drive inthe extended partition on the primary slave hard drive
Create one primary partition and an extended partition with four logical drives within it.
On MBR partitioned hard-drives only 4 primary partition can be created. (Use extended and logical partitions to create more partitions).
Typically you can only have 4 primary partitions per hard drive if you are using the MBR partition layout scheme. If you need more partitions than the maximum allowed (4), then there is a way to get many more partitions with only one hard drive.By creating an extended partition you can have as many logical partitions as you need within that extended partition, thus you can have more than only four partitions. You can have 3 primary partitions and one extended partition (for a total of 4), and inside the extended partition you can have as many logical partitions as you need.The one thing to keep in mind is that any type of Windows Operating System needs to be installed in a primary partition, otherwise you cannot boot into it. Windows XP in particular, needs to be installed in the first primary partition. For everything else, you can create as many logical partitions as you want inside the extended partition.
Same as it is for any other operating system: A primary partition is a "physical" partition that the Legacy BIOS's MBR partition table can recognize. Contrast this with a logical partition, which is a partition stored in an extended partition to work around Legacy BIOS' inability to handle 4 real, physical, primary partitions at a time. Today, on UEFI systems which use GPT, the "primary partition" vs "logical partition" concept is pretty pointless, as you can have as many true-to-life partitions you want on your hard disk due to the face UEFI does things a load better than Legacy BIOS.
The primary disk partition is the main partition that your operating system is on your hard drive. If you only had 1 OS on your computer such as Windows, then you would have two partitions, 1 would be a backup/recovery that includes that boot manager, and the second partition (the primary) would be the one that includes all of your files and the OS itself.
That depends on what primary partition the fourth extended partition has been placed on. If it was on the first primary partition, it would be /dev/sdb5 (or /dev/hdb5). If it was on the second primary partition, it would be /dev/sdb6 (or /dev/hdb6). If the third, /dev/sdb7, etc... Of course that's assuming you have placed all your logical partitions in a single primary partition. There are several other arrangements you could theoretically have made.
In Windows Server 2008, a physical drive using MBR partition style can have up to four primary partitions and one extended partition.
simple volumnes
Assuming one of them is an extended partition on an MS-DOS partition table: Eight. If the partitions are all primary partitions: Four.